SD Memory Card Size Needed When Installing City Navigator NT On Garmin C340

By : Jay

The Garmin C340 GPS is designed with simplicity in mind, although Garmin hasn’t forgotten to add a touch of class.  The StreetPilot Garmin c340 gps  is ultracompact and easy to transport. The StreetPilot Garmin c340 gps  sports dual integrated speakers for high-quality voice prompts, a USB port for PC connectivity, and an internal lithium-ion battery that provides power when you’re planning your routes outside the car (approximately 4-8 hours battery life). In addition to an included 12-volt power adapter for in-car power, there’s also an SD memory card expansion slot for use with other Garmin MapSource mapping products.

So.. What the important things you should know if you want to update your StreetPilot Garmin c340 GPS’s maps to City Navigator North America NT v8 63Maps ,  City Navigator Europe NT v8 197Maps  ?

NT is a new technology from Garmin to compress the maps. Because the maps are compress it need some CPU power from the GPS to uncompress the maps.

System Requirements:

  1. Includes USB device drivers. Internet access is required for the unlock process.
  2. PC: Windows 2000 or newer, 512 MB minimum RAM better 1 GB, at least 1024 x 768 display, 24-bit color monitor, 2 GB free disk space, USB port, USB cable, DVD drive
  3. MAC: Any Intel-based Mac or PowerPC G3 or later Mac, 512 MB RAM better 1 GB, OS X 10.4 or later, 2 GB free disk space, DVD drive, USB port, USB cable, 1024 x 768 display.

Update DVD need an older version of City Navigator or City Select to install.
After Update version is installed, you can uninstall the old maps to save diskspace. But the biggest problem experienced by users StreetPilot Garmin C340 GPS, how big is the size of SD memory cards are required to update or install City Navigator North America NT.

I suggest you use 2 GB SD memory cards or more. Please check the City Navigator North America NT file size below:


  1. City Navigator North America v8 309Maps file size is 1633MB
  2. City Navigator North America NT v8 63Maps file size is 946.6MB
  3. City Navigator Europe v8 216Maps file size is 1809.5MB
  4. City Navigator Europe NT v8 197Maps file size is 1098.4MB

Don’t forget… StreetPilot Garmin C340 GPS have a brilliant display that shows the way with 2D or 3D animations, if  the memory less after the installation,  the map display in the GPS tend will be slow down. visit Garmin’s Map Updates page.

Check out : Safety Installing City Navigator North America NT Maps On Garmin  c340